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Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. What did Julia Margaret Cameron emphasize in her portrays

A. Her subject’s home.
B. Her subject’s social status.
C. Her subject’s personality.
D. Her subject’s role in history.

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[说明]已知关系R(A，B，C，D) 和函数依赖集F为AB—＞D，C—＞，A，D—＞C。 [问题3]关系R是否满足第二范式第三范式BCNF范式

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Why does the professor mention a five story building

A. To correct a common misunderstanding about grasshoppers.
B. To help explain how well’ grasshoppers can jump.
C. To compare the size of grasshopper with that of other insects.
D. To show how quickly grasshoppers respond to danger.

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What does the man say is a drawback to the process of restoring books

A. It’s very expensive.
B. It hasn’t proven to be totally effective.
C. It can be damaging to some books.
D. It can’t be used on books published before 1850.

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Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. What is the function of the sensory organs that the professor discusses

A. They detect nerve impulses transmitted to a grasshopper’s legs.
B. They sense how far a grasshopper has jumped.
C. They detect changes in air pressure.
D. They help a grasshopper find food.

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Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. What did Julia Margaret Cameron emphasize in her portrays

A. Her subject’s home. B. Her subject’s social status. C. Her subject’s personality. D. Her subject’s role in history.

[说明]已知关系R(A，B，C，D) 和函数依赖集F为AB—＞D，C—＞，A，D—＞C。 [问题3]关系R是否满足第二范式第三范式BCNF范式

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Why does the professor mention a five story building

What does the man say is a drawback to the process of restoring books

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. What is the function of the sensory organs that the professor discusses

A. Her subject’s home.
B. Her subject’s social status.
C. Her subject’s personality.
D. Her subject’s role in history.